25630360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{383}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 66355200

約数和(自身を除く): 40724840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 239, 280, 383, 478, 766, 956, 1195, 1532, 1673, 1912, 1915, 2390, 2681, 3064, 3346, 3830, 4780, 5362, 6692, 7660, 8365, 9560, 10724, 13384, 13405, 15320, 16730, 21448, 26810, 33460, 53620, 66920, 91537, 107240, 183074, 366148, 457685, 640759, 732296, 915370, 1281518, 1830740, 2563036, 3203795, 3661480, 5126072, 6407590, 12815180, 25630360]

約数ペア:

[(1, 25630360), (2, 12815180), (4, 6407590), (5, 5126072), (7, 3661480), (8, 3203795), (10, 2563036), (14, 1830740), (20, 1281518), (28, 915370), (35, 732296), (40, 640759), (56, 457685), (70, 366148), (140, 183074), (239, 107240), (280, 91537), (383, 66920), (478, 53620), (766, 33460), (956, 26810), (1195, 21448), (1532, 16730), (1673, 15320), (1912, 13405), (1915, 13384), (2390, 10724), (2681, 9560), (3064, 8365), (3346, 7660), (3830, 6692), (4780, 5362)]